Implement for digging or cultivating land.



T. C., T. A. &. S. C. DABBY. IIPLEIENT FUR DIGGING 0B CULTIVATING LAND.

(Appliemon mod )ny 1902.) (H0 Model.) 3 Sheets-Sheet I.

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IHPLEIENT FUR'DIGGING 0R GULTIVATING LAND.

' (Appllcstlnn. led luy 5, 1902.) lo Model.) 3 Shoets-8heat 3,

lIEiTTEp STATES PATENT OFFICE.

THOMAS O. DARBY, THOMAS A. DARBY, AND SIDNEY C. DARBY, OF NICK- FORD JUNCTION, ENGLAND.

lWlPLElVlENT FOR DlGGING OR CULTIVATING LAND.

SPESTFTGATION forming part of Letters Patent No. 715,030, dated December 2, 1902.

Application iiletl May 5, 1902. Serial No. 105,994. (No model-l To @ZZ whom it may concern: each provided at their upper ends with one Be it known that we, THOMAS CHUROHMAN or more chain-wheels d-,and the spindles d are DARBY, THOMAS ALBERT DAI-inv, and SID- driven from the spindles d by means of short NEY CHARLES DARBY, subjects of the King chains cl3. 55 of Great Britain, residingl at Wickford .Iunc- In Figs. 1 and 2 we have shown two sepation,in thecountyof EsseX,England,havein rate short chains d3 giving motion from the vented certain new and useful Improvements spindles d to the two vertical spindles d' to in Implements for Digging or Cultivating the front thereof and a single chain d3 giving Land, of which the following is a full, clear, motion to said spindles cl to the rear thereof. 6o lo and exact description, and for which we have In this latter case it is advisable to employ made application for patents in Great Britain jockey-pulleys d4 to keep the chain d3 in gear on the 10th day of October, 1901; in Austria with the chain-wheels d2. on the 21st day of February, 1902, and in Hnn- In Figs. 3 and L in lieu of employing chaingary on the 25th day of February, 1902. wheels and short chains we have shown 65 15 The invention relates to that class of digtoothed wheels e attached to the upper ends ger shown and described in the specifications of the vertical spindles cl and d' and interof United States Patents No. 605,086, dated mediate or carrying pinions e' giving motion June 7, 1898, and No. 661,307, dated Novemfrom the spindles d to the spindles d'. ber G, 1900, and has for its object an improved The digging portion of the implement is 7o 2o method of driving the implement from the carried by means of chains f and an automotive power, an improved method of driving inatically-tilting wheel g, as described in the the digging-tools, improvements connected before-mentioned specification, No. 661,307, with the raising and lowering of the diggingand is connected to the engineA by means of tools, and an improved form of digging-tool. two links h, pivoted to rocking shaft h', on 75 z5 The invention is illustrated in the aocomthe outer end of whichis mounted a pulley 72,2, panying drawings, in whichover and under which the main chain b runs.

Y Figure l is a side elevation, and Fig. 2 a Two jockey-pulleys h3 h4, mounted on short plan, of one method of carrying the invention shafts h5, carried by the links 72, and outside into eect. Fig. 3 is a side elevation, and plates hs, act to keep the chain b tight. 8o

3o Figa/lE is ap lan,showinga modication in the Vthen it is desired to raise the diggingmethod of communicating `motion from the toolsj, mounted on the lower ends of the vertwo driven vertical spindles to the other vertical spindles CZ and d', the frame c, and contical spindles, upon the lower ends of which seqnently all the diggingtools j, is raised the digging-tools are mounted. Figs. 5 and by rotating the cross-shaft lo", around which 85 6 are two elevations at right angles to each the carrying-chains f pass and to which they other of the digging-tool, and Fig. 7 is a plan are attached. This shaft 7o has a worm-wheel of the same. Fig. 8 is a vertical section of a 7a2, which receives motion from a worm 7c3 on worm-gear and friction-clutch for operating the top of one of the vertical spindlesd'. A the same, by means of which the diggingsuitable clutch (shown in section in Fig. 8) is 9o 4o tools may be raised and lowered. provided operated by the hand-wheel 104, by

A is the traction-engine, having the two means of which the worm 7c3 may be made fast road-wheels A', and d is the crank or other with its vertical spindle d when it is desired rotating shaft driven by the engine. On one to raise or lower the digging-tools For this end of the shaft a we attach a chain-wheel ci', purpose the spindle d is formed with a cone 95 and by means of a chain b vwe give motion to dx, fitting within a hollow cone 10X on the lower the chain-wheel c on the main horizontal end of the hollow shaft, on which the Worm cross-shaft c of the digger. This cross-shaft k3 is formed. The hand-wheel 7a4 is threaded o is provided at each end with a bevel-pinto fit a screw-thread d. on the upper end of vion c2, which pinions gear with the bevelthe spindle d', Fig. 8, so that by turning the roo 5o wheels c3, fixed on top of the two driven spinhand-Wheel 7a4 to the right the cone cZXis drawn dles d. The vertical spindles d and d are up into tight frictional contact with the surrounding clutch-sleeve kx, so that the worm k3 will be driven by the spindle d' and will impart rotation to the worm-gear kzand windlass-shaft k', thereby winding up the chains fand raising the digging-tools j Suspended therefrom.

The digging-toolsj are of such a form that they raise the lower soil and bury the top soil. They consist of blades approximately vertical at the upper part, which are twisted and enter the soil at their lower part at an angle. The lower portions of these blades are provided with hard-steel portions j', which are connected to the bladesj by bolts jz and may readily be renewed when necessary. Each spindle d d is vprovided with one or more of such blades, as shown in the drawings.

What We claim as our invention, and desire to secure by Letters Patent, is-

l. In an implement for digging or cultivating land, the combination of a crank or other shaft on the engine, a chain-Wheel fixed on such shaft, a chain-Wheel fixed on a crossshaft carried by the frame of the digging implement, a chain for giving motion from one chain-wheel to the other, and means for communicating motion from said cross-shaft to the vertical spindles carrying the diggingtools, substantially as set forth.

2. In an implement for digging or cultivating land, the combination of a shaft on the engine, a chain-wheel mounted on such shaft, a chain-Wheel mounted on a cross-shaft carried by the frame of the digging implement, a chain communicating motion from one chain-wheel to the other, bevel-wheels mounted on the ends of the said cross-shaft, bevel- Wheels mounted on the upper ends of two ot' the vertical spindles, digging-tools mounted upon the lower ends of all the vertical spindles, and means for giving motion fromy the said two vertical spindles to the other vertical spindles, substantially as set forth.

3. In an implement for digging or cultivating land having a cross-shaft receiving motion from the engine by means of a chain and chain-wheels,the combination of bevel-wheels on each end of said cross-shaft giving motiony around a cross-shaft at the rear of the machine, the combination of a worm-wheel on said cross-shaft, a worm on the top of one of the vertical spindles, and a clutch by means of which the worm may be made fast with the machine when it is desired to raise the digging-tools, substantially as herein set forth.

In testimony whereof we affix our signatures in presence of two witnesses.

T.'C. DARBY. T. A. DARBY. S. C. DARBY.

Witnesses: l

CLAUDE K. MILLS, WM. GIRLING. 

